 Correct fuel pressure for dual carbs? |
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| terrymason |
 May 16 2007, 11:16 PM
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Member  Group: Members Posts: 346 Joined: 23-November 05 From: Virginia Beach Member No.: 5,174  |
I'm having alittle trouble getting my dual carbs dialed in, the 1st is rich, and the second is lean. My fuel pump was putting out 3.5psi, but the guy I bought my carbs from said I should run 2.6psi instead. What do you guys think?
I've got 60 idle jets and 180 mains, which I thought was overkill, until he told me that I should run 2.6 instead of 3.5 psi. |
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| terrymason |
May 17 2007, 11:08 AM
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Member Group: Members Posts: 346 Joined: 23-November 05 From: Virginia Beach Member No.: 5,174 |
I talked to Aaron from CB performance, who was awesome. He asked some really good questions, and I think has put me on the right track. A couple of things that came from it.
1. covering the barrel of the first carb will kill the engine - covering the barrel of the second carb does nothing. 2. no amount of adjustments seem to do anything to the second carb. It really sounds like I have a air leak in my second carb. When I go home tonight, I'm going to spray carb cleaner around and see if I can find it. That would pretty much explain alot of what I'm seeing. |
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Posts in this topic
terrymason Correct fuel pressure for dual carbs? May 16 2007, 11:16 PM
john rogers I ran 3.5 PSI with my four cylinder engines and ab... May 17 2007, 12:23 AM So.Cal.914 3.0 lbs. May 17 2007, 02:03 AM lotus_65 2.5 lbs May 17 2007, 06:25 AM SGB 60s are mighty big. How big is the motor?
for ma... May 17 2007, 06:59 AM type11969 The self-regulated pumps sold by VW shops for dual... May 17 2007, 08:33 AM rhodyguy any other symptoms? snapping/popping back thru the... May 17 2007, 09:35 AM
terrymason
any other symptoms? snapping/popping back thru th... May 17 2007, 09:45 AM terrymason I'm running 60 idle jets, 140 main jets, and 1... May 17 2007, 09:39 AM rhodyguy sometimes a bit more info is helpful. no mention o... May 17 2007, 09:52 AM terrymason
sometimes a bit more info is helpful. no mention ... May 17 2007, 10:34 AM type11969 If you have the dellorto superperformace tech book... May 17 2007, 09:58 AM rhodyguy the only reason i suggest turning the idle up is t... May 17 2007, 10:49 AM Travis Neff does your pump rattle a bunch? That would be an i... May 17 2007, 10:57 AM terrymason
does your pump rattle a bunch? That would be an ... May 17 2007, 11:22 AM type11969 Check to make sure your idles are clear, also veri... May 17 2007, 11:00 AM Gint
I talked to Aaron from CB performance, who was aw... May 17 2007, 05:36 PM rhodyguy "no ammount of adjustments"...are you re... May 17 2007, 11:15 AM terrymason
"no ammount of adjustments"...are you r... May 17 2007, 11:18 AM type11969 Plugged idle jet or circuit May 17 2007, 11:16 AM Travis Neff Sounds like you do have a facet pump. The CB rota... May 17 2007, 11:24 AM rhodyguy facets suck. get #3193. the canister to the right ... May 17 2007, 11:34 AM terrymason I have some 46 and 52 idle jets at home (60s insta... May 17 2007, 02:18 PM type11969 I'm running a 1.8, little warmed over than sto... May 17 2007, 02:39 PM anderssj Terry,
I have some spare jets here in Yorktown--m... May 17 2007, 04:01 PM type11969 :agree:
I fought with my dells and got sick of s... May 17 2007, 06:38 PM r_towle You may have a simple air leak at the intake bolts... May 17 2007, 09:50 PM terrymason Well, I believe that I've found the main probl... May 17 2007, 10:10 PM Gint It just plain makes good sense. You'll establ... May 17 2007, 10:18 PM terrymason I'm still fighting this thing, and am ready to... Jun 3 2007, 05:00 PM |
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